Why the platypus gave up suckling, and how gravity waves clear clouds

Why the platypus gave up suckling, and how gravity waves clear clouds

Suckling mothers milk is a pretty basic feature of being a mammal. Humans do it. Possums do it. But monotremes such as the platypus and echidna—although still mammals—gave up suckling long ago. Instead, they lap at milky patches on their mothers’ skin to get early sustenance. Science News Writer Gretchen Vogel talks with host Sarah Crespi about the newest suckling science—it turns out monotremes probably had suckling ancestors, but gave it up for the ability to grind up tasty, hard-shelled, river-dwelling creatures. Sarah also talks with Sandra Yuter of North Carolina State University in Raleigh about her work on fast-clearing clouds off the southwest coast of Africa. These immense marine layers appear to be exiting the coastal regions under the influence of gravity waves (not to be confused with gravitational waves). This finding can help scientists better model cloud behavior, particularly with respect to their influence on global temperatures. This week’s episode was edited by Podigy. Download a transcript of this episode (PDF) Listen to previous podcasts. [Image: North Carolina State University] Learn more about your ad choices. Visit megaphone.fm/adchoices

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Episoder(642)

Fighting deepfakes, and using bacteria to deliver medicine inside the body

Fighting deepfakes, and using bacteria to deliver medicine inside the body

First up on the podcast, Meagan Cantwell produced a segment with Contributing Correspondent Kai Kupferschmidt on the fight against deepfakes. Kupferschmidt talks with Hany Farid, professor at the Univ...

14 Mai 31min

A team effort to save a giant fish, the power of moonlight, and how scientists can navigate a tough political environment

A team effort to save a giant fish, the power of moonlight, and how scientists can navigate a tough political environment

First up on the podcast, along Brazil’s Juruá River, local residents have been working with scientists to manage a giant fish called the arapaima—affecting the land, the people, and the economy. Contr...

7 Mai 53min

Watching a spiders’ heart beat, epigenetic ethics, and what science biographies reveal about fame

Watching a spiders’ heart beat, epigenetic ethics, and what science biographies reveal about fame

First up on the podcast, Online News Editor David Grimm shares a batch of fun stories with podcast host Sarah Crespi—from spider hearts racing when traffic gets loud to a disease-preventing house. Sta...

30 Apr 46min

Cleaning up uranium mining, and how the heart avoids cancer

Cleaning up uranium mining, and how the heart avoids cancer

First up on the podcast, freelance science and environmental journalist Quentin Septer joins host Sarah Crespi to talk about a controversial uranium mine getting fast-tracked in South Dakota. Septer c...

23 Apr 30min

The normals | Episode 3

The normals | Episode 3

The final of a three-part limited Science Podcast series that looks at the history of normal human subjects in research In episode two, we heard what happened to the normals program after church volu...

21 Apr 33min

How to keep quantum computers cool, whether prediction markets harm public health, and podcasting on podcasting

How to keep quantum computers cool, whether prediction markets harm public health, and podcasting on podcasting

First up on the podcast, quantum computers require extremely low temperatures—less than 1°C away from absolute zero. But getting down to those temperatures has usually required dilution fridges using ...

16 Apr 50min

The Normals | Episode 2

The Normals | Episode 2

Last time on The Normals, we learned that in the 1950s, the National Institutes of Health (NIH) wanted to recruit many healthy volunteers for basic research. Two peace churches, the Mennonites and the...

14 Apr 27min

A chimpanzee ‘civil war,’ and NASA plans for nuclear propulsion

A chimpanzee ‘civil war,’ and NASA plans for nuclear propulsion

First up on the podcast, freelance science journalist Hannah Richter joins host Sarah Crespi to discuss NASA’s plans to send a nuclear-powered spacecraft to Mars in less than 3 years. Having not launc...

9 Apr 42min

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